Sample storage tube



FIG. 1 is a perspective view of a sample storage tube.

FIG. 2 is a front view of the sample storage tube depicted in FIG. 1 , with the rear view being identical.

FIG. 3 is a left side view of the sample storage tube depicted in FIG. 1 , with the right side view being identical; and,

FIG. 4 is a bottom view of the sample storage tube depicted in FIG. 1 .

The broken lines in the drawings depict portions of the sample storage tube that form no part of the claimed design. 

CLAIM The ornamental design for a sample storage tube, as shown and described. 